Lock



Nov. 10, 1931. E. N. JACOB! LOCK Filed Jan. 2. 1930 ZiWT/ML/iifli/ Patented Nov. 10, 1931 UNITED STATES PATENT OFFICE EDWARD N. J'AOOZBI, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO BRIGGS & BTBATTON CORPORATION, OF MILWAUKEE, WISCONSIN, A CORPORATION OF DELAWARE LOCK Application filed January 2, 1980. Serial No. 418,022.

This invention. relates to new and useful improvements in looks particularly to that type employing a cylinder having flat or disc type tumblers normally sprin urged to protrude beyond the cylinder perip ery.

In the present day trend of lock structures. particularly those employed in connection with automotive vehicles, it is desirable that the cylinder be removable from its mounting head or housing necessitating means for maintaining the tumblers assembled with the cylinder upon removal from its mounting head and while it is being shipped and prior to its insertion in the lock unit.

Therefore, it is an object of this invention to provide novel and improved means for retaining the tumblers assembled in the cylin- I der without necessitating distortion of the cylinder tumbler openings.

A further object of this invention resides in the provision of improved means of the character described consisting of a bar, rod, or other means adapted to be secured over the outer portions of the tumbler openm after the tumblers have been inserted there n to limit their movement thereout and retain the tumblers assembled with the cylinder.

With the above and other objects in view which will. appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawings, I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I have so far devised for the practical application of the principles thereof, and in which: Figure 1 is a perspective view of a lock cylinder and its tumblers retained therein by my improved device; and

Figure 2 is a transverse sectional View taken through Figure 1 on the plane of the line 2-2. 4

Referring now more particularly to the sprlng receiving portions 12, communicating with and forming part of the tumbler open ings, expansile springs 13 are confined to normally urge the tumblers outwardly. The spring receiving portions of adjacent tumbler receiving openings are arranged at op-' posite sides of the key opening or slot, as best illustrated in Figure 1.

In practice, the cylinder is preferably die-cast and the walls 14 between adjacent spring receiving openings are recessed or grooved, as at 15, to receive a wire or other member 16 which traverses the outer ends g of the spring receiving portions of the tumbler openings and provides stops against whlch the projections 9 normally engage to retain the tumblers within the cylinder.

15 by swedging or stakin over the edges of the channels 15, as at 1 after the wire has been placed therein. In operation the tumblers are first assembled with the cylinder and there retained b suitable means,-such as a key, not shown, inserted in the opening 6 and the cylinder is then positioned within a press or other machine and the lengths of wire 16 dropped into the channels 15 and The members 16 are secured in the grooves the edges thereof staked over, the two operat-ions being capable of automatic performance,

What I claim as my invention is:

, 1. In a lock, a. cylinder having a tumbler opening and atumbler adapted to slide therein, said cylinder having a recess in its periphery, and a wire secured in said recess with a part projecting over the tumbler opening to limit the outward projection of the tumbler.

2. In a look, a cylinder having a tumbler opening and a tumbler adapted to slide therein, said cylinder having a recess in its periphery, a Wire positioned in said recess With a part projecting over the tumbler opening to limit the outward projection of the tumbler, and an edge of said recess being staked over to secure the wire therein.

3. In a lock, a cylinder having a tumbler opening, a tumbler movable therein, a projection on the tumbler and a spring in the cylinder opening adapted to act on the underside of the projection to normally yieldably project one end of the tumbler beyond the cylinder periphery, and a Wire member adapted to be secured oVe! the tumbler opening to cooperate with the upper side of the tumbler projection and limit its outward projection by said spring.

4. In a lock, a lock cylinder having a tumbler opening. a tumbler movable therein. a. projection on the tumbler and a spring in the cylinder opening adapted to act on the underside of the projection to normally yieldably project one end of the tumbler beyond the cylinder periphery, there being a recess in the periphery of the cylinder transversely of the portion of the tumbler opening in which the tumbler projection moves, and a wire member adapted to be secured within said recess with a portion thereof extending over the opening to cooperate with the upper side of the tumbler projection and limit its outward projection by said spring.

5. In a lock cylinder having tumbler openings and a longitudinally extending key receiving slot intersecting the tumbler openings, said tumbler openings having spring receiving portions, the spring receiving portions of adjacent tumbler openings being disposed on opposite sides of the key receiving slot. tumblers insertable into said openings, projections extended laterally from the tumblers and movable in the spring receiving portions of the openings and spring means confined within the spring receiving portions of the openings and bearing against the tumbler projections to normally urge the tumblers outwardly, wire members extending over said spring receiving portions of the tumbler openings, and against which the tumbler projections abut to limit their outward movement.

6. In a lock cylinder having tumbler openings and a longitudinally extending key receiving slot intersecting the tumbler openings, said tumbler openings having spring receiving portions. the spring receiving portions of adjacent tumbler openings being disposed on opposite sides of the key receiving slot. tumblers insertable into said openings, projections extended laterally from the tumblers and movable in the spring receiving portions of the openings, and spring means confined within the spring receiving portions of the openings and bearing against the tumbler projections to normally urge the spring outwardly, there being longitudinalrecesses in the cylinder periphery communicating with the spring receiving portions of the tumbler openings, and wire members secured in said recesses and extending over said spring receiving portions of the tumbler openings and against which the tumbler projections abut to limit their outward movement.

T. In a look, a lock cylinder having tumbler openings and tumblers to be moved therein by springs, a wire overlying the openings, and means to fasten the wire to the cylinder.

8. In a lock, including a lock cylinder having a tumbler opening, a tumbler to be moved therein by a spring and an abutment on the tumbler with which the spring is engaged, a wire intersecting the tumbler opening in the path of the abutment, said wire being secured in a recess in the cylinder.

9. In a lock, a lock cylinder having spaced tumbler openings and tumblers yieldably urged outwardly of said openings, a wire embedded in aligned grooves in the cylinder portions between the tumbler openings and extended across said openings in the path of the tumblers to limit the outward movement of the tumblers.

10. In a lock, a lock cylinder having spaced tumbler openings and tumblers yieldably.

urged outwardly of said openings, means carried by the cylinder portions between the tumbler openings and lying in the path of the tumblers to limit their outward movement.

In testimony whereof I have hereunto affixed my signature.

EDWARD N. JAGOBI. 

